1,index

@{    ViewBag.Title = "Index";}    
                 
     
      )        {            
     
     
        @foreach (test.Models.tb_name item in ViewData["DataList"] as List
        }    
              
       
                    
id
                    
姓名
                    
状态
                    
编辑
               
                      
                        
@item.Id
                        
@item.uName
                        
@item.uMark
                        
                @Html.ActionLink("删除", "Del", new { id = item.Id })                @Html.ActionLink("修改", "Update", new { id = item.Id })                @Html.ActionLink("添加", "Add")            
       
      
     

2，添加视图

@model test.Models.tb_name@{    ViewBag.Title = "Add";}    
                 
Create
    @using (Html.BeginForm())    {        @Html.ValidationSummary(true)        
     
            
      
Student
            
      
                       @Html.LabelFor(model => model.uName)            
      
            
      
                       @Html.EditorFor(model => model.uName)                @Html.ValidationMessageFor(model => model.uName)            
      
            
      
                       @Html.LabelFor(model => model.uMark)            
      
            
      
                       @Html.EditorFor(model => model.uMark)                @Html.ValidationMessageFor(model => model.uMark)            
      
            
      
                            
        
     
    }    
     
              @Html.ActionLink("Back to List", "Index")    
     

3，修改视图

@model test.Models.tb_name@{    ViewBag.Title = "Update";}    
                 @using (Html.BeginForm("Update", "Index", FormMethod.Post))    {        
     
                  
       
                        
修改：@Html.HiddenFor(a => a.Id)
                   
                   
                        
课程名称
                                                
@Html.DropDownListFor(a => a.Id, ViewBag.classList as IEnumerable
         
          )
         
                   
                   
                        
学生姓名
                                                
@Html.TextBoxFor(a => a.uName)
                   
                   
                        
                    @Html.ActionLink("返回", "Index", "Index")
                   
              
     
    }

4，控制器

public class IndexController : Controller    {        testEntities db = new testEntities();        //        // GET: /Index/        public ActionResult Index()        {            testEntities db = new testEntities();            List
     
       list = (from d in db.tb_name select d).ToList();            ViewData["DataList"] = list;            return View();        }        /// 根据学生ID删除学生        ///         /// 
      学生ID        /// 
              [HttpGet]        public ActionResult Del(string id)        {            testEntities db = new testEntities();            int ids = Convert.ToInt32(id);            tb_name modelDel = new tb_name() { Id = ids };            db.tb_name.Attach(modelDel);            db.Entry
      
       (modelDel).State = System.Data.EntityState.Deleted;            db.SaveChanges();            return RedirectToAction("Index", "Index");        }        /// 
       
        /// 根据学生编号修改学生        /// 
        /// 
               /// 
               [HttpGet]        public ActionResult Update(string id)        {            int ids = Convert.ToInt32(id);            tb_name ts = (from a in db.tb_name where a.Id == ids select a).FirstOrDefault();            IEnumerable
       
         listItem = (from c in db.tb_name select c).ToList().Select(c => new SelectListItem { Value = c.Id.ToString(), Text = c.uName });            ViewBag.classList = listItem;            return View(ts);        }        [HttpPost]        /// 
        
        /// 保存要修改的数据        /// 
        /// 
        要修改的学生ID        /// 
                public ActionResult Update(tb_name ts)        {            DbEntityEntry
        
          entry = db.Entry
         
          (ts);            entry.State = System.Data.EntityState.Unchanged;            entry.Property(a => a.uName).IsModified = true;            entry.Property(a => a.Id).IsModified = true;            db.SaveChanges();            return RedirectToAction("Index", "Index");        }        public ActionResult Add()        {            return View("Add");        }        /// 
          
 /// 添加 /// 
        /// 
                  [HttpPost]        public ActionResult Add(tb_name student)        {            try            {                if (ModelState.IsValid)                {                    EntityState statebefore = db.Entry(student).State;  //Detached                     db.tb_name.Add(student);                    EntityState stateAdd = db.Entry(student).State; //Added                    db.SaveChanges();                    EntityState stateafter = db.Entry(student).State;//Unchanged                    return RedirectToAction("Index");                }            }            catch            {                ModelState.AddModelError("", "Unable to save changes. Try again, and if the problem persists see your system administrator.");            }            return View(student);        }    }